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Lower skin effect power cable manufacturing method adhere to oxidation film

A skin effect, power cable technology, used in cable/conductor manufacturing, insulation of conductors/cables, circuits, etc., can solve problems such as inapplicability and increase in outer diameter of conductor stranding, so as to reduce energy loss and reduce power consumption. skin effect

Inactive Publication Date: 2017-06-20
QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the prior art, such as the Chinese patent application number 201410709241.3, makes each wire, that is, copper wires insulated from each other, causing the twisted outer diameter of the conductor to increase, so that it cannot be applied

Method used

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Experimental program
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Effect test

Embodiment 1

[0020] A method for manufacturing a low skin effect power cable with an oxide film attached, comprising the following steps: after the copper is drawn and drawn to obtain copper wires, a plurality of copper wires used as conductors are fan-shaped to separate the strands and twisted in the strands Copper wire, use crepe insulating paper to separate the fan-shaped strands, which is conducive to structural stability. The fan-shaped strands are shaped by the semi-conductive tape covering the surface; the surface of the fan-shaped strands composed of copper wires is pickled to remove impurities; wash with water Remove the residual acid solution on the surface of the copper wire, and then dry it; immerse the strands of copper wire in copper oxidizer to form an oxide film on the surface of the copper wire. The copper oxidizer can be hydrogen peroxide (hydrogen peroxide), etc.; use water to wash off the copper wire The residual copper oxidant on the surface is then dried; the strands c...

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Abstract

The invention discloses a method for manufacturing a low-skin effect power cable with an oxide film adhered thereto, and belongs to the field of cables. The method comprises the following steps: after the copper wires are obtained, the copper wires are separated into strands in a fan shape and twisted; pickling; water washing and drying; immersing the strands formed by the copper wires into copper oxidizers to form an oxide film on the surface of the copper wires; washing with water Baking; split conductors into cables, three-layer co-extrusion of cross-linked cables, and degassing in the drying room; wrap buffer belts, cover aluminum sheaths, coat asphalt, and double-layer extrude to form outer sheaths; test cable performance. The oxide film on the surface of the copper wire can insulate the copper wires from each other, effectively reducing the skin effect and energy loss.

Description

technical field [0001] The invention relates to the field of cables, in particular to a method for manufacturing a low skin effect power cable with an oxide film adhered thereto. Background technique [0002] At present, cables with a cross-section of 1000mm2, 1200mm2 or even larger to 2500mm2 are mostly used for ultra-high voltage and large-capacity transmission at home and abroad. The conductors of such large-section cables are manufactured by traditional techniques, and eddy currents are easily generated inside during operation, resulting in conductor temperature. rise, resulting in energy loss. The problem of eddy current loss can be well solved and avoided only by making the large-section cable conductor into four, five or more split conductors, and using crepe paper to isolate the split strands. The manufacture of split conductors is a highly difficult technology, which is completely different from the traditional round strands. [0003] Due to the existence of the s...

Claims

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Application Information

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IPC IPC(8): H01B13/00H01B13/16
CPCH01B13/00H01B13/16
Inventor 李春花
Owner QINGDAO XIANGZHI ELECTRONICS TECH CO LTD
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